Oil burner



w. H. SHEPPARD Jan. 13, 1931.

GIL BURNER Filed Sept.

//v VEN T0)? WES/zapped M W A TTORNEY Patented .Ian. 13, 1931- OILBURNER. i

Application filed September The main object of this invention is toprovide an oid burner which is applicableto furnace installations orsimilar other devices for the purpose of generating heat.

Another object of this invention is to provide an oil burner which usesa stream of air under pressure. This air is guided through a bafileplate which sets it whirling, and this 7 whirling air is then mixed withatomized fueloil, also. projected into the burner under pressure.

The above and other objects will become apparent in the descriptionbelow, in which characters of reference refer to like-named parts in thedrawing.

Referring briefly to the drawing, Figure 1 is a longitudinal sectionalelevational view through the burner. V

Figure 2 is a top plan view of the same. 2Q Figure 8 a sectionalelcvational view of the upperend' of the oil spreader nozzle.

Figure 4 is a front elevational view of the upper end of the oilspreader cone.

Figure 5 is a bottom plan view of Figure 4. Referring in detail to thedrawing, the numeral 10 indicates the body of the oil burner. This bodyhas encircling it, at its upper end, a housing 11 in which a circularchannel 12 is formed.

shown. The body. is fashioned similar to bowl and is provided withapertures 13 around its wall, through which the air under natural draftpressure enters into an enclosed chamber 14 in the oil burner. The bodyis preferably mounted on posts 15 which have threaded openings 16therein for the purpose of securing the entire device on a base. Thechamber 14 is enclosed at the top by an inverted bell 17 whose edge issocured to the wall of the body 10. This inverted bell is provided withan internal substantially conical rim 18 whichencloses a similarlyshaped passageway 19. An inv erted outwardly flaring cone 2O surmountsthe rim and is open at its upper end. The base or lower end of this conehas a spider wheel 21 located thereon. This spider is provided withlaterally inclined blades 22 which radiate from the axisof the spiderand This channel 12 conu-v 30 municates with a source of supply of air,not

1,j19a.;;saa1jfm.30 ,459. I are interspersed by air, spaces 23. Thesp1der'21 has an axial opening therein 7 through: which passes a nozzlebody 24; The

nozzle body has a tapering nozzle cone 25 at its upper end. The face ofthe nozzle body has seated thereon a valve-like :spreader disc2'Ziheldcin place'by stem 41. The body 24 'has'threads28 at its lowerend which en-Q gage inthe threaded opening of a hub 29" which formspart'of the floor 30of the body. Member 29 has a pipe 31 connected tothe. lowei'-e11cl.2--1l 1e pipe projects externally of. the body10.and:has unitary therewith an inlot 32. The. passageway 33 in theinlet 're-p ceives the oil from the source ofsuppl-y and communicateswith a pair of longitudinal channlsj'34 and Said channels pass throughthe pipe 31, through the hub 29, and

then through the nozzle body 24.

The surface 38 upon which the spreader disc seats upon the nozzle body24 is provided with a groove 39. Said surface 38is provided with aplurality ofcanals 40 which extend tangentially from the circular groove39 in the spreader disc to the edge thereof. Alongside the nozzle cone25a housing 41 is located. This housing has parallel passageways 42 and48 formed. therein which communicate with the surface or the nozzlemember 25 as openings 45. A second passageway connects these twoparallel passageways 42 and 48 and this connecting passageway is incommunication with a pipe line 44 which leads from a source ofsupply ofair under pressure.

atomize oil passing through the burner under pressure with air. Theatomized oil is ignited in the confines of member 20 and serves as aheat generating unit. Air, preferably heated, passes into the chamber 14of the oil burner through the apertures 13. This air, introduced throughthese apertures, finds an outlet through the spaces 23, located betweenthe blades 22. In passing through these-spaces it is baflled laterallyby the blades 22and, after passing around the blades, begins to whirl.This whirling, heated air envelopes the burner nozzle member 25." Theoil under pressure enters through thepassageway 33 The burnerillustrated herein is adapted to I of the inlet 32 and then passes,still under pressure, out of the channels 34 and 35 into the circulargroove 39 formed in the spreader disc. The oil enters this circulargroove at two diametrically opposite positions and, between the openends of the passageways 34 and 35,. the air. openings 45. arelocated.Si.- multaneously witlrthe entering of the oil into the circular groovetwo jets of air also 10 'enterthe groove 39 from the pipe line 44underforced pressure; The and; oili in. this groove are mixed andaspressure'continues are emitted through the space which is shownbetween the spreader disc2'Z and nozzle 10 25 and are thrust upwardly inatomi'zed'cohdition.

It is. to he noted. that certain; changes: in form and. construction maybe made. wrthout departing from the spirit and scope oi? the invention.

Iclaim:

In an oil burner, a. sprayer nozzlev comprising a. body having air andoil passages there;- inyan inverted conical upper-end on said body; the;conical end having a flatseattherei'n, a

spreader discseated on saidsflat seat an annular groove therein, the.air and oilpassages. opening into said groove, andtangential canalsextending fromsaid groove to 'th'e edge ofsaid disc. 1

In. testimony whereofI afliix my signature;

WALTER HARRY SHEPPARD.

